Last updated: June 24, 2025
In December, the average temperature in Sterling, United States hovers around 3°C (37°F). Expect a chilling minimum of -13°C (8°F), with a rare peak of 24°C (76°F). Precipitation is moderate, totaling 29 mm (1.2 in) over just 2 days, while humidity remains high at 83%. Stay prepared for varied weather!
In December in Sterling, the average temperature is 3°C (37°F). Maximums can reach 24°C (76°F), and minimums can be as low as -13°C (8°F). Be prepared for a wide range of temperatures if you plan to visit during this time.
In Sterling in December, the precipitation amount is 29 mm (1.2 in) over a period of 2 days.
In Sterling in December, humidity is 83%. With an average temperature of 3°C (37°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and encouraging travelers to seek indoor attractions or cozy cafes.
In Sterling in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Sterling, you can check the information here.
UV Risk Categories
Weather in Sterling varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sterling, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 0°C (33°F) | 27 mm (1.0 inches) | 74% | moderate |
February Weather | 1°C (33°F) | 27 mm (1.1 inches) | 78% | moderate |
March Weather | 8°C (47°F) | 69 mm (2.7 inches) | 67% | high |
April Weather | 12°C (55°F) | 54 mm (2.1 inches) | 70% | very high |
May Weather | 18°C (65°F) | 160 mm (6.3 inches) | 82% | very high |
June Weather | 25°C (78°F) | 72 mm (2.9 inches) | 81% | extreme |
July Weather | 27°C (81°F) | 70 mm (2.8 inches) | 80% | extreme |
August Weather | 25°C (78°F) | 92 mm (3.6 inches) | 80% | very high |
September Weather | 22°C (73°F) | 65 mm (2.6 inches) | 73% | very high |
October Weather | 14°C (57°F) | 85 mm (3.4 inches) | 71% | high |
November Weather | 7°C (45°F) | 26 mm (1.0 inches) | 79% | moderate |
December Weather | 3°C (37°F) | 29 mm (1.2 inches) | 83% | moderate |